Re: [css-houdini-drafts] [css-typed-om] Color conversion and contrast ratio (#989)

> I tried following the thread I linked to above but it was way too long and seemed to be mostly notes of original research. Is there a working group resolution or draft spec? I'm afraid until there is, we cannot build on top of it in other specs, but we will certainly keep this in mind in anything we design.

@LeaVerou   Hi Lea,

Yes, thread 695 get quite dense. The first three links in my post above provide a working example, and some documentation on the methodology.

The official working draft is not released for Silver, but there is a work in progress you can view here:

https://htmlpreview.github.io/?https://raw.githubusercontent.com/w3c/silver/master/guidelines/methods/Method-font-characteristic-contrast.html

But yes, this is more of a "heads up/what's coming."  and to be clear the aim is to predict readability as opposed to perceived contrast. Complete models like Hunt or ICAM are very complex; here the goal is to keep the prediction as simple as possible to maintain readability as opposed to a complete prediction of image assessment.

Something much farther off is the SAPC standard observer and SLAB or SLUV, a lab type space but specific to sRGB. (More focused on accessibility adjustments)

Let me know if you have any questions or thoughts.





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Received on Wednesday, 17 June 2020 13:20:53 UTC